DQRID : D091210.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/02/2006000012/03/20092107Suspect
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Subject:
NSA/CEIL/C1 - Degraded window
DataStreams:nsaceilC1.b1
Description:
The ceilometer continuously gave warnings for window contamination because the window had 
deteriorated. Cloud base height detection did not appear to be significantly affected. 
The window conditioner was replaced on 8/11/09 but this did not clear the warning. The 
instrument was replaced.
Suggestions: 
Measurements:nsaceilC1.b1:
  • window_contamination
  • first_cbh
  • alt_highest_signal
  • background_light
  • status_flag
  • second_cbh
  • backscatter
  • status_string
  • vertical_visibility
  • sum_backscatter
  • third_cbh
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